Special Functions of star number * in CSS

A few days ago, it was found that the original pagination symbol (using a special image font) could not be properly displayed. After thinking about it, the reason should naturally be caused by CSS. The problem should be in a pile of CSS files pulled in the last few days (the pictures are easy to use and are directly referenced ). But it is a bit puzzled, because these symbols are <font face...> </font> as defined, even if the external div is defined in CSS, the internal font should be preferred.

If you have any questions, open two CSS statements and start searching. In one file, you can see the style definition with the asterisk "*". Although you have seen only a few CSS statements before, however, even if you haven't seen it, you can see from the DOS experience that it is like a wildcard representing all elements in an HTML or CSS file. In this style definition, we found that the Font does not include the font used by the paging symbol, but this should not be a problem, because the most external definition will always be replaced by the innermost definition.

View other style definitions. The results are searched for the rest, and no problem is found. Finally, return to the style of the asterisk and comment it out. Then, we can see the result. The asterisk "*" is not only widely represented by wildcards, but also forces other styles to use the style content specified by it. Then I checked the information and looked at its complete description. I found that it does have the function of forced filtering.

To sum up this problem, the asterisk (*) In css must be used to forcibly filter out wildcard characters, unless you want to achieve a specific effect.